The League of Catholic Women Building is located at 100 Parsons Street in Detroit, Michigan. It is also known as Casgrain Hall or the Activities Building. The building was listed on the National Register of Historic Places in 1997.

History In 1906, a group of women from all over Detroit associated with the Catholic Church organized the Weinman Club as a charitable organization, dedicated to providing assistance to immigrants flooding into Detroit. In 1911, the club was renamed the Catholic Settlement Association, and in 1915 it was reorganized and again renamed the League of Catholic Women. As immigration was curtailed in the 1920s, the League shifted focus to assisting single young women who were seeking employment in the city.

Building When this building was constructed, the League spent over $1,000,000, raised by a membership numbering some 12,000 women. The League named the building Casgrain Hall in honor of the League's founder, Anastasia Casgrain. The building originally provided accommodations for 250 women. These women were between the ages of 18 and 30 and earned less than $150 per month. The building also housed the League’s offices, and included a cafeteria, a chapel, library, ballroom, auditorium and a roof top garden.

Later use Over time, the aims of the League changed, as they opened community centers and neighborhood services. In the 1960s, the League began providing housing to women attending Wayne State University's School of Nursing. In 1972, the League repaired and improved the building. In 1982, the building was converted into 82 apartment units for low-income elderly and/or handicapped with Section 8 rent subsidies. In 1994, the organization officially changed its name from the League of Catholic Women to Metro Matrix Human Services. The League of Catholic Women continued as a division of Metro Matrix, and the organization continues to operate from the building.